Merge git://git.denx.de/u-boot-usb

drivers/dfu/Kconfig

@@ -0,0 +1,10 @@
+menu "DFU support"
+
+config DFU_TFTP
+	bool "DFU via TFTP"
+	help
+	  This option allows performing update of DFU managed medium with data
+	  send via TFTP boot.
+	  Detailed description of this feature can be found at ./doc/README.dfutftp
+
+endmenu

drivers/dfu/Makefile

@@ -10,3 +10,4 @@ obj-$(CONFIG_DFU_MMC) += dfu_mmc.o
 obj-$(CONFIG_DFU_NAND) += dfu_nand.o
 obj-$(CONFIG_DFU_RAM) += dfu_ram.o
 obj-$(CONFIG_DFU_SF) += dfu_sf.o
+obj-$(CONFIG_DFU_TFTP) += dfu_tftp.o

drivers/dfu/dfu.c

@@ -76,7 +76,7 @@ int dfu_init_env_entities(char *interface, char *devstr)
 }
 
 static unsigned char *dfu_buf;
-static unsigned long dfu_buf_size = CONFIG_SYS_DFU_DATA_BUF_SIZE;
+static unsigned long dfu_buf_size;
 
 unsigned char *dfu_free_buf(void)
 {
@@ -568,3 +568,40 @@ int dfu_get_alt(char *name)
 
 	return -ENODEV;
 }
+
+int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size)
+{
+	unsigned long dfu_buf_size, write, left = size;
+	int i, ret = 0;
+	void *dp = buf;
+
+	/*
+	 * Here we must call dfu_get_buf(dfu) first to be sure that dfu_buf_size
+	 * has been properly initialized - e.g. if "dfu_bufsiz" has been taken
+	 * into account.
+	 */
+	dfu_get_buf(dfu);
+	dfu_buf_size = dfu_get_buf_size();
+	debug("%s: dfu buf size: %lu\n", __func__, dfu_buf_size);
+
+	for (i = 0; left > 0; i++) {
+		write = min(dfu_buf_size, left);
+
+		debug("%s: dp: 0x%p left: %lu write: %lu\n", __func__,
+		      dp, left, write);
+		ret = dfu_write(dfu, dp, write, i);
+		if (ret) {
+			error("DFU write failed\n");
+			return ret;
+		}
+
+		dp += write;
+		left -= write;
+	}
+
+	ret = dfu_flush(dfu, NULL, 0, i);
+	if (ret)
+		error("DFU flush failed!");
+
+	return ret;
+}

drivers/dfu/dfu_tftp.c

@@ -0,0 +1,65 @@
+/*
+ * (C) Copyright 2015
+ * Lukasz Majewski <l.majewski@majess.pl>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <errno.h>
+#include <dfu.h>
+
+int dfu_tftp_write(char *dfu_entity_name, unsigned int addr, unsigned int len,
+		   char *interface, char *devstring)
+{
+	char *s, *sb;
+	int alt_setting_num, ret;
+	struct dfu_entity *dfu;
+
+	debug("%s: name: %s addr: 0x%x len: %d device: %s:%s\n", __func__,
+	      dfu_entity_name, addr, len, interface, devstring);
+
+	ret = dfu_init_env_entities(interface, devstring);
+	if (ret)
+		goto done;
+
+	/*
+	 * We need to copy name pointed by *dfu_entity_name since this text
+	 * is the integral part of the FDT image.
+	 * Any implicit modification (i.e. done by strsep()) will corrupt
+	 * the FDT image and prevent other images to be stored.
+	 */
+	s = strdup(dfu_entity_name);
+	sb = s;
+	if (!s) {
+		ret = -ENOMEM;
+		goto done;
+	}
+
+	strsep(&s, "@");
+	debug("%s: image name: %s strlen: %d\n", __func__, sb, strlen(sb));
+
+	alt_setting_num = dfu_get_alt(sb);
+	free(sb);
+	if (alt_setting_num < 0) {
+		error("Alt setting [%d] to write not found!",
+		      alt_setting_num);
+		ret = -ENODEV;
+		goto done;
+	}
+
+	dfu = dfu_get_entity(alt_setting_num);
+	if (!dfu) {
+		error("DFU entity for alt: %d not found!", alt_setting_num);
+		ret = -ENODEV;
+		goto done;
+	}
+
+	ret = dfu_write_from_mem_addr(dfu, (void *)addr, len);
+
+done:
+	dfu_free_entities();
+
+	return ret;
+}

drivers/usb/gadget/f_thor.c

@@ -123,6 +123,9 @@ static int process_rqt_cmd(const struct rqt_box *rqt)
 		send_rsp(rsp);
 		g_dnl_unregister();
 		dfu_free_entities();
+#ifdef CONFIG_THOR_RESET_OFF
+		return RESET_DONE;
+#endif
 		run_command("reset", 0);
 		break;
 	case RQT_CMD_POWEROFF:
@@ -728,6 +731,10 @@ int thor_handle(void)
 
 		if (ret > 0) {
 			ret = process_data();
+#ifdef CONFIG_THOR_RESET_OFF
+			if (ret == RESET_DONE)
+				break;
+#endif
 			if (ret < 0)
 				return ret;
 		} else {
@@ -768,7 +775,7 @@ static int thor_func_bind(struct usb_configuration *c, struct usb_function *f)
 		goto fail;
 	}
 	dev->req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE,
-				 gadget->ep0->maxpacket);
+				 THOR_PACKET_SIZE);
 	if (!dev->req->buf) {
 		status = -ENOMEM;
 		goto fail;

drivers/usb/gadget/f_thor.h

@@ -121,4 +121,7 @@ struct f_thor {
 #define F_NAME_BUF_SIZE 32
 #define THOR_PACKET_SIZE SZ_1M      /* 1 MiB */
 #define THOR_STORE_UNIT_SIZE SZ_32M /* 32 MiB */
+#ifdef CONFIG_THOR_RESET_OFF
+#define RESET_DONE 0xFFFFFFFF
+#endif
 #endif /* _USB_THOR_H_ */

drivers/usb/host/ehci-hcd.c

@@ -1645,8 +1645,10 @@ int ehci_register(struct udevice *dev, struct ehci_hccr *hccr,
 	ctrl->hcor = hcor;
 	ctrl->priv = ctrl;
 
-	if (init == USB_INIT_DEVICE)
+	ctrl->init = init;
+	if (ctrl->init == USB_INIT_DEVICE)
 		goto done;
+
 	ret = ehci_reset(ctrl);
 	if (ret)
 		goto err;
@@ -1666,6 +1668,9 @@ int ehci_deregister(struct udevice *dev)
 {
 	struct ehci_ctrl *ctrl = dev_get_priv(dev);
 
+	if (ctrl->init == USB_INIT_DEVICE)
+		return 0;
+
 	ehci_shutdown(ctrl);
 
 	return 0;

drivers/usb/host/ehci.h

@@ -242,6 +242,7 @@ struct ehci_ops {
 };
 
 struct ehci_ctrl {
+	enum usb_init_type init;
 	struct ehci_hccr *hccr;	/* R/O registers, not need for volatile */
 	struct ehci_hcor *hcor;
 	int rootdev;